Weighing-scale.



L. C. WETZELt WEiGHING SCALE.

APPLICATION FILED mm. 11. 1913.

1,253,318, Patented (Tan 15,1918.

UNITE Ii FIGE.

LEWIS CALVIN WETZEL, 01" TOLEDO, OHIO, ASSIGNOR, BY MESNEhA SSIGNMENTS, TO

TOLEDO SCALE COMPANY, 015 TOLEDO, UHIO, A CORPORATION OF NEW JERSEY.

wnrenms-scnnn.

Application filed Ifiarch 17,

To all whom it may concern:

Be it known that. LLnwIs v citizen of the United States, residing at Toledo, in. the county of Lucas and State of Ohio, have invented certain new and use- G. lVnTznL, a

ful Improvements in Weighing ScaIes, of

which the followin is. specification.

. My invention re ates more perticularl toan adjustable chart which may be a justed either for the purpose of correcting the zero position thereof, or,"and this is the more important function, for taking out tare in case the scale is used for weighing substances in the packages into which they are put for transportation. in the accompanymg drawings and in the following specification I have disclosed in detail a preferred form of my invention" as applied to a pendulum scale but it will be readily apparent that it may be variously embodied in the same and many other forms of scale, the detailed disclosure in connection with a pendulum scale being for thegmrpose of exemplification only and the scope of the invention being Set forth in the following claims in,.,which'i have attempted to distinguish itfrom the prior art without, however relinquishing or abandoning any portion thereof.

In the-drawings Figure l is a side elevation of the preferred form of the invention; as applied to a pendulum scale as stated above and Fig. 2 a central vertical section at right angles to the plane of Fig. 1. The same reference numeral is applied to each part throughout the drawings and specifica- N tion.

The base 1, hbrns 2, lever 23, scale pan 4; and pendulum, 5 and connection 6 are or may be of any well-known or preferred form and the pendulum and connectionv are inclosed in a housing 7 into which the lever- 3 projects through an opening 8. The housingis in general of the-usual form b is slightly modified in respects hereina t r mentioned to adapt it to my invention. The pendulum as usual is suspended from a knife 9 supported on bezlrlngs 10, 10 which are held in seats 11, 11 formed integral with and rojecting inwardly from the casing. ()penmgs 12, 12 are formed in the casing opposite and above the seats and coverplates 13, 13 are arranged over the openings when the pendulum has been properly adjusted. A hollow cylindrical boss .14; is sehpecification of Letters Patent.

Patented Jain-15, 1918.

191a. Scria1No.75 l,73 l.

concentric with the axis of oscillation of the pendulum and upon the boss is pivotally mounted a frame 15, the sleeve 16 of which surrounds the boss and is capnble of oscillation with reference thereto,there preferably being a slight degree of friction between these parts to prevent too ready movement of the frame. A flanged ring 17 secured within the hollow boss 14: projects over the end of sleeve 16 and prevents its displacement from the boss. The frame 15 is sector shaped, as shown in Fig.1, and along its curved upper edge carries a series of posts or studs 18 upon which is concentrically mounted the arcuate graduated scale 19 bearing the usual weight indications. Upon its upper edge the frame 15 is pro'videdwith a rack 20 with which meshes a pinion 21 mounted upon a shaft 22 journaled in the upper part of thecasing. The rack. and pinion are for the purpose of adjusting the graduated are or chart, and for this purpose the end of the shaft 22 upon the operators side of the scale is secured to the revoluble member of a barrel lock 23 of any llSlllll or preferred type, so that by the insertion of the key thereof the shaft 22 and the pinion 21 may be turned to adjust the chart and yet the scale is proof in this respect against tampering by unauthorized persons. The arc 19 is situated mid-way between the front and back walls of the casing and is spanned or embraced by the bifurcated end of the weight indicator or p inter 24: which cooperates with the graduations upon the opposite sides of the are and is visible from both sides of the scale through the openings 25, 26 in the rear and front of'the casing respectively.

The operation of the device will be apparent to anyone familiar with the use of scales. When an article is. to be Weighed without the'package therefor it is'placed on the scale pan and its weight ascertained in the usual manner without the manipulation of the scale chart which-normally occupies a zero position. When, however, an article is to be weighed in. a container such as the 105.;

curedabout one of the openings 12, 12 and I commodity is now filled into the receptacle to the amount desired which may be directiy read from the chart, the Weight of the vessel or tare being in this manner eliminated.

I claim:

1. A Weighing scale coingorising e pivoted indicator hand, a chart pii oted concentricelly with the indicator hand and having a rack upon the arcuate edge thereof, a pinion meshing with the rack for adjusting the chart, a shaft upon which the pinion is mounted and a lock the revolubie member of which is connected to the shaft for rotating the same.

2. In a, Weighing scale and in combination with the beam, load receiver and pendulum thereof, a bifurcated weight indicator connected to and movable with the pendulum, a hoilow boss surrounding one of the pendulum hearings, a sleeve rotatable upon'the hoes, a frame connected to the sleeve, on fLIClliltB chart carried by the frame and extending between the forks of the bifurcated indicator, a rack upon the orcuete edge of the frame, a pinion meshingwith the rock and means for revolving the pinion.

3. In an automatic Weighing scale, it cosing, an indicator hand, a, frame pivoted upon thecasing concentric with the pivot of the hand and having; a rack upon the edge thereof m a plane perpendicular to the pivot oi said frame and hand, it shaft jonrneied in the casing carrying pinion cooperating With said rack, posts projecting from. said frame, and a chart concentric 'Wlilh said ranged upon oiieof the Wells of the casing surrounding the bearing carried thereby, e pivoted ironic journeled upon said hoes, means for swinging said frame about its journei, and a chart carried by said frame.

5. In automatic Weighing scale and in coi'nhinetion with the thereof beerings formed in the casing, an indicator hand, a knife carrying the indicator and mounted on said hearings sieeve secured to of said Walls concentric to the been ing thereof and projecting inwardly therefrom, a freine having e hollow sieeve surrounding the sleeve on the casing, means for seeming the sleeves from reizttive endwise moven ent meons for oscillating the from comprising u rock and pinion, and a chart carried by said frame.

LEWIS QALVEL VJ ii i t-ness'ee CLARENCE W. FESSENDEN, SAM CRANE, 

